Point of Interest is widely used in urban planning. It can be used for analysis and calculation, such as navigation and positioning, geocoding, perimeter search, heat analysis, density analysis, location decision analysis, etc.; it can also be used for visual display, such as light map, cluster map, etc.

At present, the technology of acquiring POI data of Internet electronic map has been relatively mature, and Python is widely used.

Here is a case of Hotel data collection.

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The method of suitability evaluation in urban security pattern is to combine all kinds of urban information and give corresponding weight to obtain the continuous value of urban suitability degree based on a certain direction analysis, such as suitability analysis of indicator species, evaluation of urban microclimate comfort, etc. This analysis method was derived from mchagrid’s Design Combined With Nature. With the development of GIS, it has become one of the main means to analyze the city. Based on this method, SIR model is introduced to analyze the dynamic process, and the range change of source point analysis spread is given after data condition superposition. In this case, convolution method and SIR model are used.

The process of expansion

Convolution kernel of SIR model

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